Add 54/60 and 42/56
54/60 + 42/56 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 60 × 14 = 840,
54/60 = 54 × 14/60 × 14 = 756/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
42/56 = 42 × 15/56 × 15 = 630/840 - Add the two like fractions:
756/840 + 630/840 = 756 + 630/840 = 1386/840 - 1386/840 simplified gives 33/20
- So, 54/60 + 42/56 = 33/20
In mixed form: 113/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+84/56